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Finding the Fourth Proportional to 19,762.45, 29,664.54 and 19,316.23

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Solution

The fourth proportional to 19,762.45, 29,664.54 and 19,316.23 is: 28,994.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,762.45 : 29,664.54 = 19,316.23 : x
  2. Step 2: Convert to fraction form
    19,762.45/29,664.54 = 19,316.23/x
  3. Step 3: Cross multiply
    19,762.45x = 29,664.54 × 19,316.23
  4. Step 4: Simplify right side
    19,762.45x = 573,007,077.48
  5. Step 5: Solve for x
    x = 573,007,077.48/19,762.45
  6. Step 6: Final answer
    x = 28,994.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.